Chainlink. Think it feeds all the real world data into these smart contract platforms, think they're the main player in this area. It was at 50 a couple of weeks back.
https://www.coingecko.com/en/coins/chainlink
There's another one called Kylin who do the same but for Polkadot who I think will do really well long term if Polkadot takes off.
https://www.coingecko.com/en/coins/kylin-network